7-????-1-???-3-???

Acid Brown 188 Acid Brown 165 Acid Brown 161 C.I. Acid Brown 146 sodium 3-[[5-(acetylethylamino)-o-tolyl]azo]-4-hydroxy-6-[(4-methoxyphenyl)amino]naphthalene-2-sulphonate ACID BROWN 191 Acid brown 17 sodium 4-hydroxy-3-[(2-methoxy-5-nitrophenyl)azo]-6-(phenylamino)naphthalene-2-sulphonate disodium 4-[[2,4-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-1-sulphonate